Average Co-Inventor Count = 3.00
ph-index = 1
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Kaneka Corporation (1 from 1,700 patents)
1 patent:
1. 6221926 - Expandable polystyrene resin beads, process for the preparation of them, and foam made by using the same